the norm is "slick" has no tread, "semi-slick" may have some type of grooves or outside edge knobbies. depends on the manufacturer and how they decide to label them also. Some manufacturer's call them slicks but still have mild grooves also.

There are two kinds of people in the world, "Those who help themselves to people, and those who help people!"

(07-03-2015, 03:20 PM)painkiller Wrote: the norm is "slick" has no tread, "semi-slick" may have some type of grooves or outside edge knobbies. depends on the manufacturer and how they decide to label them also. Some manufacturer's call them slicks but still have mild grooves also.

The more tire on the road the more comfortable the ride. semi slick may have a larger cross section on the road for the same tire size.